97.81% is the change from 503 to 995
Calculation steps:
[( 995 - 503 ) ÷ 503] x 100 = 97.81%
Formula
Percentage change = [(995 - 503) / 503] x 100
Subtract the new number by the original number
995 - 503 = 492
492 ÷ 503 = 0.9781312127236581
0.9781312127236581 x 100 = 97.81%